<h3>Key features</h3><ul> <li>1700Pcs Larger Quantity: Various M2 M3 M4 M5 Screws with Nuts and Washers: Set screw assortment kit include 110 M2 Screws, 110 M2 Nuts; 110 M3 Screws, 110 M3 Nuts; 110 M4 Screws, 110 M4 Nuts; 75 M5 Screws, 75 Nuts; Flat washers and lock washers, hex key and 50mm hex allen wrench drill bits</li> <li>24 Sizes More Choices, Custom 6 Lengths for 1 Model, Screws Assortment Accord with Standardized Metric System: lengths: 8mm, 10mm, 12mm, 16mm, 20mm, 25mm. M2 M3 M4 M5 screws and nuts total 1700pcs. Thread pitch: M2: 0.4mm; M3: 0.5mm; M4: 0.7mm; M5: 0.8mm</li> <li>More Than 20 Years Experience in Fastener Tool Production, High Quality 10.9 Grade Alloy Steel Matertal: Assorted screws are made of high quality alloy steel. Nice Screws assortment, durable nuts and bolts. Extraordinary Technology &amp; Professional</li> <li>Please Note: Add a Little Anti-Rust Oil To The Product, In Order To Be More Durable: It's Anti-Rust Oil, Not Rust. Each screw is packed separately in a bag. Storage: Assorted screws are stored in one storage bin box, convenient for storing and carrying</li> <li>Widely Used, Nice Bolts and Nuts Kit Bring More Convenience to Life: This socket cap screws hex head bolt nuts assortment kit, easy to repair and install such as furniture, equipment, production maintenance, toys, computer assembly etc</li> </ul><p>Free shipping included. 30-day hassle-free returns.</p>